CN201443567U - Fore bearing of camshaft - Google Patents
Fore bearing of camshaft Download PDFInfo
- Publication number
- CN201443567U CN201443567U CN2009200279866U CN200920027986U CN201443567U CN 201443567 U CN201443567 U CN 201443567U CN 2009200279866 U CN2009200279866 U CN 2009200279866U CN 200920027986 U CN200920027986 U CN 200920027986U CN 201443567 U CN201443567 U CN 201443567U
- Authority
- CN
- China
- Prior art keywords
- oil
- camshaft
- bearing
- bearing body
- oil groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a fore bearing of a camshaft, which comprises a bearing body; an oil supply hole is arranged on the bearing body; an oil groove, the bottom of which is communicated with the oil supply hole, is arranged on the inner wall of the bearing body; the oil groove comprises an annular oil groove which encircles the periphery of the external side of the oil supply hole and is communicated with the cavity of the oil supply hole; two strip-type oil grooves which are respectively communicated with the annular oil groove are arranged on the inner wall of the bearing body; and the two strip-type oil grooves take on inverted V shape. When lubricating oil enters the inner wall of the bearing body, an oil film is formed on the inner wall of the bearing body, and a part of lubricating oil enters the oil groove to be stored; and when the bearing capacity of the matching place of a main journal of the camshaft and the fore bearing of the camshaft increases, the oil film can be lost or be damaged; along with the rotation of the camshaft, the lubricating oil in the oil groove is used for timely supplement to form a lubricating oil film again, plays the role in the lubrication and cooling, avoids the main journal of the camshaft from being stuck with the fore bearing of the camshaft, thus avoiding the rotary sleeve phenomenon of the fore bearing of the camshaft from appearing.
Description
Technical field
The utility model belongs to the parts and components of diesel engine field, is specifically related to the camshaft fore bearing of installing on a kind of camshaft main shaft.
Background technique
Development along with society, tractor power is increasing, matching used agricultural machinery and implement power is also increasing, the pressure of hydraulic oil strengthens in the hydraulic system, the power of oil hydraulic pump also needs to increase very big for this reason, be meshed with the gear of oil hydraulic pump with the diesel engine cam shaftgear of tractor, cause the cooperation place bearing capacity of camshaft main journal and camshaft fore bearing to strengthen a lot, make the oil film breakdown on the camshaft fore bearing inwall easily, it is sticking glutinous to cause camshaft main journal and camshaft fore bearing to take place, and causes camshaft fore bearing pivoted housing.
The model utility content
The technical problems to be solved in the utility model provides a kind of camshaft fore bearing that can guarantee camshaft fore bearing inwall oil slick thickness.
For addressing the above problem, a kind of camshaft fore bearing that is provided comprises bearing body, and bearing body is provided with oil inlet hole, and its structural feature is: the inwall of described bearing body is provided with the oil groove that bottom land is communicated with described oil inlet hole.
After adopting said structure, because the inwall of bearing body is provided with the oil groove that bottom land is communicated with described oil inlet hole, when the lubricant oil that has pressure enters the bearing body inwall by oil inlet hole, on the bearing body inwall, form oil film, part lubricant oil enters oil groove and stores, when the cooperation place of camshaft main journal and camshaft fore bearing bearing capacity strengthens, oil film may be lossy or be destroyed, rotation along with camshaft, lubricant oil in the oil groove can replenish the cooperation place of camshaft and camshaft fore bearing timely, again form lubricant film, play effect lubricated and cooling, it is sticking glutinous to have avoided camshaft main journal and camshaft fore bearing to take place, thereby has also avoided occurring the phenomenon of camshaft fore bearing pivoted housing.
Described oil groove comprises the annular oil groove that is looped around the oil inlet hole outer periphery and communicates with the oil inlet hole vestibule, also is provided with the bar shaped oil groove that communicates with annular oil groove on the inwall of bearing body.
Described bar shaped oil groove is provided with twice altogether, and two bar shaped oil grooves are " eight " font along the bearing body inwall.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
The structural representation that Fig. 1 analyses and observe for the utility model;
Fig. 2 for A-A among Fig. 1 to the structural representation of analysing and observe;
Fig. 3 for B-B among Fig. 1 to the structural representation of analysing and observe;
The schematic representation that Fig. 4 analyses and observe for prior art convexity wheel shaft fore bearing.
Embodiment
A kind of as shown in drawings camshaft fore bearing comprises bearing body 1, and the wall thickness of the utility model middle (center) bearing body about about 2.5mm, can improve its intensity and bearing capacity greatly.The two end part of bearing body 1 are provided with positioning convex 4 and positioning groove 5 respectively, the middle part of bearing body 1 is provided with oil inlet hole 2, lubricant oil can enter the inwall of bearing body 1 by oil inlet hole 2, also be provided with the oil groove 3 that bottom land is communicated with above-mentioned oil inlet hole 2 vestibules on the inwall of this bearing body 1, this oil groove 3 comprises the annular oil groove 3-1 that is looped around oil inlet hole 2 outer periphery and communicates with oil inlet hole 2 vestibules, also be provided with the bar shaped oil groove 3-2 that twice communicate with annular oil groove 3-1 respectively on the inwall of bearing body 1, two bar shaped oil groove 3-2 are " eight " font along bearing body 1 inwall and distribute.
Claims (3)
1. a camshaft fore bearing comprises bearing body (1), and bearing body (1) is provided with oil inlet hole (2), it is characterized in that: the inwall of described bearing body (1) is provided with the oil groove (3) that bottom land is communicated with described oil inlet hole (2).
2. a kind of camshaft fore bearing according to claim 1, it is characterized in that: described oil groove (3) comprises the annular oil groove (3-1) that is looped around oil inlet hole (2) outer periphery and communicates with oil inlet hole (2) vestibule, also is provided with the bar shaped oil groove (3-2) that communicates with annular oil groove (3-1) on the inwall of bearing body (1).
3. a kind of camshaft fore bearing according to claim 2 is characterized in that: described bar shaped oil groove (3-2) is provided with twice altogether, and twice bar shaped oil groove (3-2) is " eight " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200279866U CN201443567U (en) | 2009-06-16 | 2009-06-16 | Fore bearing of camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200279866U CN201443567U (en) | 2009-06-16 | 2009-06-16 | Fore bearing of camshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443567U true CN201443567U (en) | 2010-04-28 |
Family
ID=42548244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200279866U Expired - Fee Related CN201443567U (en) | 2009-06-16 | 2009-06-16 | Fore bearing of camshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949411A (en) * | 2010-09-06 | 2011-01-19 | 李耀强 | Internal-combustion engine bush with oil distribution grooves |
-
2009
- 2009-06-16 CN CN2009200279866U patent/CN201443567U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949411A (en) * | 2010-09-06 | 2011-01-19 | 李耀强 | Internal-combustion engine bush with oil distribution grooves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20100616 |